SB 460 Montana Senate · 2025 Regular Session

Generally revise gravel pit laws

SB 460 would have required Montana's Department of Environmental Quality to ensure protection of surface and groundwater from open-cut mining operations. The bill amended state law to specifically mandate the department adopt rules for permits, records, and inspections, and to enforce water quality and quantity standards during mining activities. This would directly affect open-cut mining operations statewide by imposing new regulatory requirements on their water protection measures. The bill did not advance beyond committee and died in the 2025 legislative session.
Bill status died 1 of 4 stages cleared
Introduction
Feb 2025
Committee Review
Floor Vote
Governor
Introduced Feb 24, 2025 Last action May 23, 2025
Maddy AI version diff · 1 comparison

What changed between versions

LC4380.pdf SB0460_1.pdf · 2 edits
MINOR
The bill text was updated from a legislative committee version (LC 4380) to the final Senate Bill version (SB 460.1), incorporating a list of sponsors and standardizing the bill title and formatting. The substantive legal content regarding the Department of Environmental Quality's powers to regulate opencut mining and protect water remains identical to the previous version.
TECHNICAL

Updated bill header to reflect the final Senate Bill number (SB 460) and included the full list of sponsoring legislators.

Reformatted the bill text to match standard legislative printing conventions, including spacing and section numbering.

Floor votes

How they voted

No floor votes recorded yet.
Full legislative history

Actions timeline

Total actions
16
Key actions
1
Committee
2
Amendments
1
Mar 4, 2025
Amended
(S) Tabled in Committee - (S) Natural Resources
upper
Mar 4, 2025
Upper · Passed
(S) Committee Executive Action - (S) Natural Resources
upper
Feb 25, 2025
Committee
(S) Referred to Committee - (S) Natural Resources
upper
Feb 24, 2025
Introduced
(S) Introduced
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Pat Flowers
Pat Flowers
DDemocratic
MT
31